Senior Java Engineer – Low Latency Trading Systems (m/f/d)

Responsibilities

You will contribute to a high-throughput, low-latency trading platform, with direct impact on business performance:

Design and develop high-performance Java components for real-time trading systems

Deliver new features while maintaining strict latency, throughput and resiliency constraints

Analyse and optimise system performance (CPU, memory, threading, GC)

Collaborate closely with traders, business analysts and support teams

Participate in production support (L3) and ensure system reliability

Contribute to architecture evolution and scalability improvements

Support onboarding of new products and business expansions

Continuously improve development practices, tooling and automation

Leverage AI-assisted development tools to accelerate delivery and code quality

Profile required

Experience & technical skills

Master’s degree in computer science or equivalent

Strong experience in Core Java (10+ years) in performance-critical environments

Deep expertise in:

Concurrency, multi-threading, synchronization, executors

Memory management, collections, streams, generics

Proven experience in low latency / high throughput systems

Experience with performance tuning & profiling tools (JMH, JProfiler, VisualVM, etc.)

Solid knowledge of:

Distributed systems, messaging (JMS), APIs (REST/gRPC)

Unix/Linux environments and SQL

Experience with testing frameworks (JUnit, Mockito)

Knowledge of derivatives/trading systems is a strong plus

Agile mindset and familiarity with modern CI/CD tooling (Git, Jenkins)

Fluent English required

Interest or experience in AI-augmented development (Copilot, LLMs, automation tooling) is a strong advantage

Personal abilities & competencies

Strong analytical and problem-solving mindset in complex, performance-driven environments

Ability to work autonomously and take ownership of critical components

Excellent collaboration and communication skills in an international setup

Pragmatic, results-driven, and passionate about engineering excellence

Why join us

Work on business-critical systems where milliseconds matter

Benefit from an AI-enabled engineering environment

Solve complex technical challenges at scale

Exposure to global trading activities and stakeholders

Direct impact on trading performance and revenue generation

Business insight

Société Générale’s Global Business Technology & Operations (GBTO) delivers cutting-edge IT platforms supporting fast-growing trading businesses across global markets.

Within GBTO, the Market Making Technology team builds and operates high-performance, in-house trading systems powering pricing, hedging, risk and execution across European exchanges and global locations (Frankfurt, Paris, London, HK, New York).

Our platform handles hundreds of thousands of trades per day in a highly demanding real-time environment.

This role sits at the core of this ecosystem.

You will join a team of highly skilled engineers working directly with trading desks to continuously improve performance, scale and capabilities of a mission-critical low latency platform.

Diversity and Inclusion

We are an equal opportunities employer and we are proud to make diversity a strength for our company. Societe Generale is committed to recognizing and promoting all talents , regardless of their beliefs, age, disability, parental status, ethnic origin, nationality, gender identity, sexual orientation, membership of a political, religious, trade union or minority organisation, or any other characteristic that could be subject to discrimination.